package com.caoyu.classtest.dao.user;

import com.caoyu.classtest.dao.BaseDao;
import com.caoyu.classtest.pojo.User;
import com.mysql.jdbc.StringUtils;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

/**
 * dao层抛出异常，让service层去捕获处理
 *
 * @author Administrator
 */
public class UserDaoImpl implements UserDao {

    @Override
    public int add(Connection connection, User user) throws Exception {
        // TODO Auto-generated method stub
        PreparedStatement pstm = null;
        int updateRows = 0;
        if (null != connection) {
            String sql = "insert into cl_user (userCode,userName,userPassword," +
                    "userRole,gender,birthday,phone,address,creationDate,createdBy) " +
                    "values(?,?,?,?,?,?,?,?,?,?)";
            Object[] params = {user.getUserCode(), user.getUserName(), user.getUserPassword(),
                    user.getUserRole(), user.getGender(), user.getBirthday(),
                    user.getPhone(), user.getAddress(), user.getCreationDate(), user.getCreatedBy()};
            updateRows = BaseDao.execute(connection, pstm, sql, params);
            BaseDao.closeResource(null, pstm, null);
        }
        return updateRows;
    }

    @Override
    public User getLoginUser(Connection connection, String userCode)
            throws Exception {
        // TODO Auto-generated method stub
        PreparedStatement pstm = null;
        ResultSet rs = null;
        User user = null;
        if (null != connection) {
            String sql = "select * from cl_user where userCode=?";
            Object[] params = {userCode};
            rs = BaseDao.execute(connection, pstm, rs, sql, params);
            if (rs.next()) {
                user = new User();
                user.setId(rs.getInt("id"));
                user.setUserCode(rs.getString("userCode"));
                user.setUserName(rs.getString("userName"));
                user.setUserPassword(rs.getString("userPassword"));
                user.setGender(rs.getInt("gender"));
                user.setBirthday(rs.getDate("birthday"));
                user.setPhone(rs.getString("phone"));
                user.setAddress(rs.getString("address"));
                user.setUserRole(rs.getInt("userRole"));
                user.setCreatedBy(rs.getInt("createdBy"));
                user.setCreationDate(rs.getTimestamp("creationDate"));
                user.setModifyBy(rs.getInt("modifyBy"));
                user.setModifyDate(rs.getTimestamp("modifyDate"));
            }
            BaseDao.closeResource(null, pstm, rs);
        }
        return user;
    }

    @Override
    public List<User> getUserList(Connection connection, String userName, int userRole, int currentPageNo, int pageSize)
            throws Exception {
        // TODO Auto-generated method stub
        PreparedStatement pstm = null;
        ResultSet rs = null;
        List<User> userList = new ArrayList<User>();
        if (connection != null) {
            StringBuffer sql = new StringBuffer();
            sql.append("select u.* from cl_user u");
            List<Object> list = new ArrayList<Object>();
            if (!StringUtils.isNullOrEmpty(userName)) {
                sql.append(" and u.userName like ?");
                list.add("%" + userName + "%");
            }
            if (userRole > 0) {
                sql.append(" and u.userRole = ?");
                list.add(userRole);
            }
            sql.append(" order by creationDate DESC limit ?,?");
            currentPageNo = (currentPageNo - 1) * pageSize;
            list.add(currentPageNo);
            list.add(pageSize);

            Object[] params = list.toArray();
            System.out.println("sql ----> " + sql.toString());
            rs = BaseDao.execute(connection, pstm, rs, sql.toString(), params);
            while (rs.next()) {
                User _user = new User();
                _user.setId(rs.getInt("id"));
                _user.setUserCode(rs.getString("userCode"));
                _user.setUserName(rs.getString("userName"));
                _user.setGender(rs.getInt("gender"));
                _user.setBirthday(rs.getDate("birthday"));
                _user.setPhone(rs.getString("phone"));
                _user.setUserRole(rs.getInt("userRole"));
                userList.add(_user);
            }
            BaseDao.closeResource(null, pstm, rs);
        }
        return userList;
    }

    @Override
    public int deleteUserById(Connection connection, Integer delId) throws Exception {
        // TODO Auto-generated method stub
        PreparedStatement pstm = null;
        int flag = 0;
        if (null != connection) {
            String sql = "delete from cl_user where id=?";
            Object[] params = {delId};
            flag = BaseDao.execute(connection, pstm, sql, params);
            BaseDao.closeResource(null, pstm, null);
        }
        return flag;
    }

    @Override
    public User getUserById(Connection connection, String id) throws Exception {
        // TODO Auto-generated method stub
        User user = null;
        PreparedStatement pstm = null;
        ResultSet rs = null;
        if (null != connection) {
            String sql = "select u.* from cl_user where u.id=?";
            Object[] params = {id};
            rs = BaseDao.execute(connection, pstm, rs, sql, params);
            if (rs.next()) {
                user = new User();
                user.setId(rs.getInt("id"));
                user.setUserCode(rs.getString("userCode"));
                user.setUserName(rs.getString("userName"));
                user.setUserPassword(rs.getString("userPassword"));
                user.setGender(rs.getInt("gender"));
                user.setBirthday(rs.getDate("birthday"));
                user.setPhone(rs.getString("phone"));
                user.setAddress(rs.getString("address"));
                user.setUserRole(rs.getInt("userRole"));
                user.setCreatedBy(rs.getInt("createdBy"));
                user.setCreationDate(rs.getTimestamp("creationDate"));
                user.setModifyBy(rs.getInt("modifyBy"));
                user.setModifyDate(rs.getTimestamp("modifyDate"));
            }
            BaseDao.closeResource(null, pstm, rs);
        }
        return user;
    }

    @Override
    public int modify(Connection connection, User user) throws Exception {
        // TODO Auto-generated method stub
        int flag = 0;
        PreparedStatement pstm = null;
        if (null != connection) {
            String sql = "update cl_user set userName=?," +
                    "gender=?,birthday=?,phone=?,address=?,userRole=?,modifyBy=?,modifyDate=? where id = ? ";
            Object[] params = {user.getUserName(), user.getGender(), user.getBirthday(),
                    user.getPhone(), user.getAddress(), user.getUserRole(), user.getModifyBy(),
                    user.getModifyDate(), user.getId()};
            flag = BaseDao.execute(connection, pstm, sql, params);
            BaseDao.closeResource(null, pstm, null);
        }
        return flag;
    }

    @Override
    public int updatePwd(Connection connection, int id, String pwd)
            throws Exception {
        // TODO Auto-generated method stub
        int flag = 0;
        PreparedStatement pstm = null;
        if (connection != null) {
            String sql = "update cl_user set userPassword= ? where id = ?";
            Object[] params = {pwd, id};
            flag = BaseDao.execute(connection, pstm, sql, params);
            BaseDao.closeResource(null, pstm, null);
        }
        return flag;
    }

    @Override
    public int getUserCount(Connection connection, String userName, int userRole)
            throws Exception {
        // TODO Auto-generated method stub
        PreparedStatement pstm = null;
        ResultSet rs = null;
        int count = 0;
        if (connection != null) {
            StringBuffer sql = new StringBuffer();
            sql.append("select count(1) as count from cl_user u");
            List<Object> list = new ArrayList<Object>();
            if (!StringUtils.isNullOrEmpty(userName)) {
                sql.append(" and u.userName like ?");
                list.add("%" + userName + "%");
            }
            if (userRole > 0) {
                sql.append(" and u.userRole = ?");
                list.add(userRole);
            }
            Object[] params = list.toArray();
            System.out.println("sql ----> " + sql.toString());
            rs = BaseDao.execute(connection, pstm, rs, sql.toString(), params);
            if (rs.next()) {
                count = rs.getInt("count");
            }
            BaseDao.closeResource(null, pstm, rs);
        }
        return count;
    }


}
